1
Scope
2 References
3 Definitions
4 Abbreviations
5 Description
6 Operational requirements
6.1 Provision/withdrawal
6.2 Requirements on the originating
network side
6.3 Requirements on the destination
network side
7 Coding requirements
8 State definitions
8.1 User states
8.2 Network states
9 Signalling procedures at the
coincident S and T reference point
9.1 Procedures at the served user's
interface
9.1.1 Activation
9.1.2 Deactivation
9.1.3 General interrogation
9.1.4 Particular interrogation
9.1.5 Recall indication
9.1.6 CCNR call request
9.1.7 CCNR call establishment
9.1.8 Network initiated deactivation procedures
9.1.9 B free but A busy procedure
9.1.10 User A monitoring procedure
9.1.11 Call information retention
9.1.12 Basic call information and compatibility checking
9.2 Procedures at the remote user's
interface
9.2.1 Acceptance of a CCNR request
9.2.2 CCNR queue processing
9.2.3 Determination of user B free
9.2.4 CCNR call
10 Procedures for interworking with private ISDNs
10.1 Procedures for the originating T reference
point
10.1.1 CCNR available indication
10.1.2 CCNR supplementary service request
10.1.3 Remote user free indication
10.1.4 Suspend request
10.1.5 Resume request
10.1.6 CCNR call establishment
10.1.7 Deactivation
10.2 Procedures for the destination T
reference point
10.2.1 CCNR available
indication
10.2.2 CCNR supplementary service request
10.2.3 Remote user free indication
10.2.4 Suspend request
10.2.5 Resume request
10.2.6 CCNR call establishment
10.2.7 Deactivation
11 Interactions with other networks
11.1 Interaction with non-ISDNs
12 Interaction with other supplementary services
12.1 Call Waiting (CW)
12.2 Explicit Call Transfer (ECT)
12.3 Connected Line Identification
Presentation (COLP)
12.4 Connected Line Identification
Restriction (COLR)
12.5 Calling Line Identification
Presentation (CLIP)
12.5.1 Coding requirements
12.5.2 Procedures at the coincident S and T reference point
12.5.3 Procedures for interworking with private ISDNs
12.6 Calling Line Identification Restriction
(CLIR)
12.6.1 Coding requirements
12.6.2 Procedures at the coincident S and T reference point
12.6.3 Procedures for interworking with private ISDNs
12.7 Closed User Group (CUG)
12.8 Conference Calling (CONF)
12.9 Direct-Dialling-In (DDI)
12.10 Call diversion (call forwarding)
services
12.10.1 Call Forwarding Busy (CFB)
12.10.2 Call Forwarding No Reply (CFNR)
12.10.3 Call Forwarding Unconditional (CFU)
12.10.4 Call Deflection (CD)
12.11 Line Hunting (LH)
12.12 Three-Party Service (3PTY)
12.13 User-to-User Signalling (UUS)
12.14 Multiple Subscriber Number (MSN)
12.14.1 Coding requirements
12.14.2 Signalling procedures at the coincident S and T reference point
12.14.3 Procedures for the remote network
12.15 Call Hold (HOLD)
12.16 Advice of Charge (AOC)
12.17 Sub-addressing (SUB)
12.18 Terminal Portability (TP)
12.19 Completion of Calls to Busy
Subscriber (CCBS)
12.19.1 Coding requirements
12.19.2 Signalling procedures at the coincident S and T reference point
12.20 Malicious Call Identification
(MCID)
12.21 Reverse Charging (REV)
12.22 Multi-Level Precedence and
Preemption (MLPP)
12.23 Support of Private Numbering Plan
(SPNP)
12.24 International Telecommunication
Charge Card (ITCC)
12.25 Global Virtual Network Services
(GVNS)
12.26 Call Completion on No Reply (CCNR)
13 Parameter values (timers)
14 Dynamic description (SDLs)
Appendix I – Signalling flows